Pleroma/lib/pleroma/web/oauth/token.ex

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# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.OAuth.Token do
use Ecto.Schema
import Ecto.Query
import Ecto.Changeset
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alias Pleroma.Repo
alias Pleroma.User
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alias Pleroma.Web.OAuth.App
alias Pleroma.Web.OAuth.Authorization
alias Pleroma.Web.OAuth.Token
@expires_in Pleroma.Config.get([:oauth2, :token_expires_in], 600)
@type t :: %__MODULE__{}
schema "oauth_tokens" do
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field(:token, :string)
field(:refresh_token, :string)
field(:scopes, {:array, :string}, default: [])
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field(:valid_until, :naive_datetime_usec)
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belongs_to(:user, Pleroma.User, type: Pleroma.FlakeId)
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belongs_to(:app, App)
timestamps()
end
@doc "Gets token for app by access token"
@spec get_by_token(App.t(), String.t()) :: {:ok, t()} | {:error, :not_found}
def get_by_token(%App{id: app_id} = _app, token) do
from(t in __MODULE__, where: t.app_id == ^app_id and t.token == ^token)
|> Repo.find_resource()
end
@doc "Gets token for app by refresh token"
@spec get_by_refresh_token(App.t(), String.t()) :: {:ok, t()} | {:error, :not_found}
def get_by_refresh_token(%App{id: app_id} = _app, token) do
from(t in __MODULE__,
where: t.app_id == ^app_id and t.refresh_token == ^token,
preload: [:user]
)
|> Repo.find_resource()
end
def exchange_token(app, auth) do
with {:ok, auth} <- Authorization.use_token(auth),
true <- auth.app_id == app.id do
create_token(
app,
User.get_cached_by_id(auth.user_id),
%{scopes: auth.scopes}
)
end
end
defp put_token(changeset) do
changeset
|> change(%{token: Token.Utils.generate_token()})
|> validate_required([:token])
|> unique_constraint(:token)
end
defp put_refresh_token(changeset, attrs) do
refresh_token = Map.get(attrs, :refresh_token, Token.Utils.generate_token())
changeset
|> change(%{refresh_token: refresh_token})
|> validate_required([:refresh_token])
|> unique_constraint(:refresh_token)
end
defp put_valid_until(changeset, attrs) do
expires_in =
Map.get(attrs, :valid_until, NaiveDateTime.add(NaiveDateTime.utc_now(), @expires_in))
changeset
|> change(%{valid_until: expires_in})
|> validate_required([:valid_until])
end
def create_token(%App{} = app, %User{} = user, attrs \\ %{}) do
%__MODULE__{user_id: user.id, app_id: app.id}
|> cast(%{scopes: attrs[:scopes] || app.scopes}, [:scopes])
|> validate_required([:scopes, :user_id, :app_id])
|> put_valid_until(attrs)
|> put_token
|> put_refresh_token(attrs)
|> Repo.insert()
end
def delete_user_tokens(%User{id: user_id}) do
from(
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t in Token,
where: t.user_id == ^user_id
)
|> Repo.delete_all()
end
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def delete_user_token(%User{id: user_id}, token_id) do
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from(
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t in Token,
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where: t.user_id == ^user_id,
where: t.id == ^token_id
)
|> Repo.delete_all()
end
def get_user_tokens(%User{id: user_id}) do
from(
t in Token,
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where: t.user_id == ^user_id
)
|> Repo.all()
|> Repo.preload(:app)
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end
def is_expired?(%__MODULE__{valid_until: valid_until}) do
NaiveDateTime.diff(NaiveDateTime.utc_now(), valid_until) > 0
end
def is_expired?(_), do: false
end